Actually, Microsoft is making it easier and easier to port to Linux, OS X, IOS, and Android. I would be willing to help port Log4OM to Linux and IOS. An iPad would make an awesome logging platform for Summits on the Air or American Field Day for a battery class station.

I'm watching with much interest the release of .NET core as open source. This will presumably give a boost to MONO project and similar initiatives.
Log4OM was already working under MONO some years ago, when we found that MONO libraries was so bugged that Log4OM crashed due component crash too often to have something reliable...